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这么写为啥不对

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Release: 2016-06-13 12:21:34
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这样写为啥不对
下图是我写的一个类中的方法,试图在同类中,在方法indexOp中调用同类的另一个方法reverse
但结果提示错误:Fatal error: Call to undefined function reverse() in D:\WWW\shop\control\index.php on line 12

当然这句话的提示说是发现reverse函数没有定义,
可我明明定义了哈,难道哪里不有不符合规范的地方吗

------解决思路----------------------
你在reverse方法里面还有一个方法reverse(substr($str,1)); 是这个方法报错了,改成self::reverse(substr($str,1)); 或者$this->reverse(substr($str,1)); 就可以了 应该

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